The messages that are getting through are only 120kb in size. It looks like our Message Size Limit is set to 262144. I assume that number is in bytes, which would mean the spam in question shouldn't be labeled as oversize, correct?

Either way, do you have any recommendation as to what I should increase our message size limit to, in an effort to resolve this issue?

We are still seeing obvious spam getting through with the "pass oversize message" action. Does anyone have any suggestions on how to fix this or have a recommendation as to what to set our Message Size Limit to (it's currently set to 262144)? Any assistance is appreciated!